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Finding the Third Proportional to 130,407.75 and 285,752.25

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Solution

The third proportional to 130,407.75 and 285,752.25 is: 626,146.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,407.75 : 285,752.25 = 285,752.25 : x
  2. Step 2: Convert to fraction form
    130,407.75/285,752.25 = 285,752.25/x
  3. Step 3: Cross multiply
    130,407.75x = 285,752.25 × 285,752.25
  4. Step 4: Simplify right side
    130,407.75x = 81,654,348,380.06
  5. Step 5: Solve for x
    x = 81,654,348,380.06/130,407.75
  6. Step 6: Final answer
    x = 626,146.44

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.